1988-04-18_PERMIT FILE - C1981008A ‎(2)‎

• Permit No: C1981008A
• IBM Index Class Name: PERMIT FILE
• Doc Date: 4/18/1988
• Doc Name: Sedimentation Pond 002
• Section_Exhibit Name: Tab 13 Attachment C
• Media Type: D
• Archive: Yes

TABLE OF CONTENTS
Page
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Site Description . . . . . . . . . . . . . . . . . . . . . . . . 1
LandUse . . . . . . . . . . . . . . . . . . . . . . . . . 1
Embankment. . . . . . . . . . . . . . . . . . . . . . . . . 1
Design Analysis. . . . . . . . . . . . . . . . . . . . . . . . . 2
General . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Hydrology . . . . . . . . . . . . . . . . . . . . . . . . . 2
SCS Curve Numbers and "k" Factor . . . . . . . . . . . 3
Precipitation and Storm Type . . . . . . . . . . . . . 6
Unit Hydrograph and Surface Condition. . . . . . . . . 6
Time of Concentration. . . . . . . . . . . . . . . . . 7
Sedimentology . . . . . . . . . . . . . . . . . . . . . . . 7
Particle Size Distributions. . . . . . . . . . . . . . 7
Length - Slope Factors (L,S) . . . . . . . . . . . . . 8
Control Practice Factor (CP) . . . . . . . . . . . . . 9
Storage Capacity . . . . . . . . . . . . . . . . . . . . . 9
Spillway . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pond No. 002 = North Ditch . . . . . . . . . . . . . . . . . . . 11
Remedial Compliance Plan . . . . . . . . . . . . . . . . . . . . 13
Selected References . . . . . . . . . . . . . . . . . . . . . . 15
Addendum A - 10-year, 24-hour SEDIMOT II (Input and Output) - 002
Pond
Addendum B - 25-year, 24-hour SEDIMOT II (Input and Output) - 002
Pond
Addendum C-100-year, 24-hour SEDIMOT II (Input and Output) - 002
Pond
Appendix 1 - As-Built Report, Sedimentation Structure 002